Mr Wood cited community concerns at Milford and Devonport in his North Shore ward for the council playing a game of "Russian roulette" before the Unitary Plan was notified.
"We have to do the work upfront, the work we are doing in this informal engagement with the community at the moment. I don't believe the timeframe we are working to is credible," Mr Wood said.
Mayor Len Brown said that by and large most people were pretty comfortable with the "compact city" model and was adamant the council would not change the timetable midstream.
"This is the time to respect due process, be reliable and consistent and back it up," he said, adding the council was in a good space to notify the Unitary Plan in September with the "odd change" from public feedback.
A number of councillors expressed concerns about the timeframe. Dick Quax said the process was anything but robust; Wayne Walker called it incredibly rushed; and Christine Fletcher said the plan was all about aiding and abetting developers.